Well Maintained 2011' Keystone-Sprinter - Series M-255 RKS Travel Trailer 
sleeps 6, used less than 15 times over the years.  Parked in private yard behind gate.
28' from one side to the other.
Great AC & Heating system, mid size fridge, stove, oven, microwave, fantastic floor plan!! New Tires, LED lights inside, dual batteries, brand new memory foam mattress - very easy to tow.
Here is a video link below for the exact model, layout, color etc.
https://youtu.be/GqKvPw-C7S0